1919 CLARK — SOME UNDESCRIBED SPHINGIDAE 111 
March | 
is of a lighter brown color than the rest of the wing, making the dark red- 
brown triangular area more distinctly marked apically. The distal margin 
is of a curious outline, strongly lobed at the veins. It is strongly concave 
from a lobe on SC5 to R3 where it is strongly lobed, and within this con- 
cavity it is weakly lobed on R1 and R2. It is again strongly lobed on M1, 
weakly so on M2, and the lobe at the hinder angle is so strongly and bluntly 
produced that the inner margin is deeply concave. The general outline of 
the distal margin is like 7. zantus apiciplaga. Cilia brown. The tips of 
both fore wings are broken off. Minute white stigma at apex of cell. 
Hind wing above: dark brown, unicolorous. Cilia white, dark at the 
veins. Distal margin concave between the veins. 
Fore wing beneath: mummy-brown, unicolorous; darker toward the 
base and hinder margin. Minute white stigma on cell. Narrow, indistinct, 
irregular, dark brown submarginal band. 
Hind wing beneath: Mummy-brown, unicolorous. A narrow, geminate, 
indistinct, irregular, dark brown band runs roughly parallel to the distal 
margin. 
Protoparce barnesi sp. nov. 
Plate XIII, figure 3. 
Al. ant. long., 9, 60 mm. AI. ant. lat., 9, 23 mm. Marg. ext., 9, 
34 mm. . 
Habitat. — Escuintla, Guatemala. One female in coll. B. Preston Clark, 
collected, July, 1917, by my friends William Schaus and J. T. Barnes, and 
given me by them. Taken on an electric light pole. 
This species is allied to P. franciscae Clark, and more closely to P. flores- 
tan; but it is longer-winged than the latter. 
Fore wing above: Ground tone white, with no green tinge. Black discal 
streaks R3—M2 lacking. The markings are all faint, and the semicircular 
median area on costal margin, often so pronounced in P. florestan, is en- 
tirely lacking. Stigma lacking. 
Hind wing above: Black, irrorated with white toward anal angle. Cilia 
white, black at the veins. The apical line, so deeply curved basad, between 
the apex and SC5, in franciscae and florestan, is much less so in this species. 
Fore wing below: Unicolorous, brown. Cilia white, brown at the veins. 
Very narrow distal black marginal band, slightly undulate between the 
veins. 
Hind wing below: Brown. Basal third of the wing heavily irrorated 
with white. Two broad whitish bands, indefinite in outline, one median, 
the other postmedian, parallel to the distal margin, but turning slightly 
basad as they approach the inner margin. 
